To report violations of the gas leaf blower ban in the City of Los Angeles, dial 311.

That operator will connect you to the Report Line. Also report repeat violations in the future. If an LAPD car is in the vicinity, they may be able to respond. If not, your report(s) will be followed-up at a later date.

Be prepared to report the day of the week, the date, the time, the address, and the license plate on the gardener's vehicle, if any.